By going from Pewter City to Cerulean City, you just hop off the ledge. From Cerulean City to Pewter City, you can't. You have to go around and into Diglett's Cave.
hes at the route were you first meet misty after you chase him around.
There Isn't
you dont make poffins in soul sliver
in the radio tower
in route 37
no
goldenrod
jhoto and kanto regien Pokemon
you have to get it from Pokemon platinum or diamond
Happiny, into Chansey.
you cant
in the kanto region